所以我在python上开发代码，我一直收到此错误"TypeError: can't multiply sequence by non-int of type 'tuple' "

Question

代码：

def main():
incomefile = open(r'C:Usersjaceyincome.txt', 'w')
income1 = int(input("Please enter your current income:"))
tax1= float(input("please enter current tax:"))
income2 = int(input("Please enter your current income:"))
tax2= float(input("please enter current tax:"))
income3 = int(input("Please enter your current income:"))
tax3= float(input("please enter current tax:"))
income4 = int(input("Please enter your current income:"))
tax4= float(input("please enter current tax:"))
grossIncome= (income1+income2+income3+income4, '.2f')
taxTotal= (tax1+tax2+tax3+tax4, '.2f')
grossTaxes = (grossIncome*taxTotal, '.2f')
netIncome = (grossIncome - grossTaxes, '.2f')


incomefile.write(str(income1) +'n')
incomefile.write(str(tax1) +'n')
incomefile.write(str(income2) +'n')
incomefile.write(str(tax2) +'n')
incomefile.write(str(income3) +'n')
incomefile.write(str(tax3) +'n')
incomefile.write(str(income4) +'n')
incomefile.write(str(tax4) +'n')
incomefile.write(str(grossIncome) +'n')
incomefile.close()
print('Data recorded in income.txt')
main()

grossTaxes = (grossIncome*taxTotal)

错误：

TypeError: can't multiply sequence by non-int of type 'tuple'

Answer 1

执行此操作时：

grossIncome= (income1+income2+income3+income4, '.2f')
taxTotal= (tax1+tax2+tax3+tax4, '.2f')

它创建元组：

元组可以通过多种方式构建：

• 使用一对圆括号表示空元组：((
• 对单个元组使用尾部逗号：a或(a，(
• 用逗号分隔项目：a、b、c或(a、b和c(
• 使用内置的元组((：元组((或元组(可迭代(

然后这个：

grossTaxes = (grossIncome*taxTotal)

正在尝试将这些元组相乘。这行不通。

你想用语法(val+val2+val3...., '.2f')做什么？只需将值相加，去掉'.2f'和括号：tax=val1+val2+val3....